Tap the word that some refers to​

Pls needs hypehen or no hyphen 1. after serving as principal for ten years,mr. jones will resign this year 2. it's sixty seven degrees outside and it's only february!

Suppose you need to verify how to correctly use commas. you open your english textbook and scan the chapter titles. in which one would you most likely find the information you need? ; ; ; ; that's the ? im having truble with

The significant structural shift that happens between chapters 21 and 22 is